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Lana71 [14]
3 years ago
5

What is the percent of 108 is 81

Mathematics
2 answers:
marusya05 [52]3 years ago
8 0
That would be 133.33
ANTONII [103]3 years ago
6 0
108 times .75 is 81... so that would mean 75% of 108 is 81
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Complete the pattern 0.02 , 0.2
Kryger [21]
It looks like the pattern is x 10, because that's how you get from 0.02 to 0.2. So, the pattern would go 0.02, 0.2, 2, 20, 200, 2000, etc.
3 0
3 years ago
What is the missing number ?? /6 =25/30
matrenka [14]

Answer:

5

Step-by-step explanation:

\frac{25}{30} ( divide numerator and denominator by 5 ) , then

\frac{25}{30} = \frac{5}{6} ( with missing number ? = 5 )

8 0
2 years ago
Read 2 more answers
A first number plus twice a second number is 14. Twice the first number plus the second totals 10. Find the numbers.
Nookie1986 [14]

Answer:

first number(x) = 2 second number(y)= 6

Step-by-step explanation:

This is an example of a simultaneous equation.

First write this word problem as equations, where x is the "first number" that you've mentioned and y is the "second number".

x + 2y = 14  (equation 1)

2x + y = 10  (equation 2)

This is solved using the elimination method.

We need to make one of the coefficients the same - in this case we can make y the same. In order to do this we need to multiply equation 2 by 2, so that y becomes 2y.

2x + y = 10 MULTIPLY BY 2

4x + 2y = 20 (this is now our new equation 2 with the same y coefficient)

Now subtract equation 1 from equation 2.

4x - x + 2y - 2y = 20 - 14  (2y cancels out here)

3x = 6

x = 2

Now we substitute our x value into equation 1 to find the value of y.

2 + 2y = 14

2y = 12

y = 6

Hope this has answered your question.

6 0
3 years ago
Read 2 more answers
1.
MrMuchimi

Answer:

D

Step-by-step explanation:

Got it right on test

3 0
2 years ago
Read 2 more answers
What is f(-2) of the function given below? *<br> f(x) = 3x2 - 4x + 1
slava [35]

Answer:

f(-2) = 21

Step-by-step explanation:

Step 1: Define

f(x) = 3x² - 4x + 1

f(-2) is x = -2

Step 2: Substitute and Evaluate

f(-2) = 3(-2)² - 4(-2) + 1

f(-2) = 3(4) + 8 + 1

f(-2) = 12 + 9

f(-2) = 21

5 0
3 years ago
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